Improved pavement



l l l'yl looooooooooooofoooo oooooooooo ooooooo'ooooooooooooo o o o oo oOo o oo ,DOO o o C)coco o o oO Ooo o o Oo o oo o oo o OO oo o oO o oo ooo ooo Oo o o o O OOO o O, oOo o O 0.0v Oo O o oeoo o o0 ccoo o ooo-oocoo oo oo 0.00 o oo o oo o oo o 05H0 o o o lo o o Q O OO O OO O O OOcfoo O OO l l Il a al f7/'5' d n Z1' fifa fl IIIA UNITED STATES PATENTOEEICE.

H. G. MGGONEGAL, OF NEW YORK, NrY.

IM PROVED PAVEM ENT.V

Specication forming part of Letters Patent No. 74,110, dated February 4,1868.

To all whom it may concern:

Be it known that I, H. G. MCGONEGAL, of the city, county, and State ofNew York, have invented a new and improved Wooden Street- Pavement; andI. do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure 1 represents a planor top view, partly in section, of my invention. Figs. 2 and 3 arevertical cross-sections of the same, showing different modes ofarrangement.

Similar letters of reference indicate corresponding parts.

This invention relates to a new wooden street-pavement, which is soarranged that the blocks in each row are connected with each other, sothat not one can be forced down without the others also sinking; therebythe holes, now generally occurring in wooden pavements by the sinking ofsingle blocks, will be avoided, and a whole coherent wooden pavementwill thus be provided.

The inventionalso consists in boring vertical holes into the blocks forthe purpose of receiving sand, cement, or tar. The same will wearquicker than the wood, and the surfaces of the filling will, therefore,be lower than the face of the wooden blocks; thereby a suiicientlyuneven surface is provided for the purpose of giving a secure footholdto the horses.

A A represent the blocks, which constitute my improved pavement. Thesame are made of any suitable kind of wood, and of any suitable size, ofrectangular or other form, as shown in Fig. l. They are placed in rowsupon suitable beds, as shown, each row extending from one curb to theother.

In the side of each block, near to the edge 'of the same, is asemi-cylindrical depression, a, arranged in such a manner that, with thesimilar semi-cylindrical recess, a, in the adjoining block, acylindrical receptacle for small blocks, b b, will be provided.

By these blocks b b the blocks A, in each row, will be connected so asto form a coherent chain, and a sudden depression or elevation of anysingle block, A, is thereby made impossible. The blocks b may, ifdesired, be fitted into the recesses in two rows of blocks A, so as toconnect two such rows; thereby the whole pavement would be connected.

By having one key-block, which is not connected with the others by thelinks b, the pavement can be taken up for repair. The blocks A A areprovided with vertical holes, c om bored from their surfaces into orthrough the same, as shown in the drawing. These holes are filled withsand, cement, or any suitable material, and are for the purpose ofsecuring foot-holds for the horses, and for allowing expansion andcontraction of the blocks.

lhe blocks A A may be laid upon boards, B B, which would be laid one ormore inches apart, so as not to retain moisture. These boards would belaid upon a layer, G, of coaltar or cement, under which sand, D, wouldbe spread, as shown in Fig. 2; or the blocks A may be laid directly uponthe tar C, as shown in Fig. 3. The links b may be of other than roundform; they may be square or polygonal, if desired. The recesses a would,in that case, correspond to the shape of the blocks b.

I claim as new, and desire to secure by Letters Patent- The blocks A A,when provided with perforations C C into or through the same, substantially as and for the purpose herein shown land described.

H. G. MCGONEGAL.

Witnesses:

- G. L. PEAnsoN,

W. B. MATGHELL.

